HD 34790: Difference between revisions
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'''HD 34790''' is spectroscopic binary. |
'''HD 34790''' is a spectroscopic binary. |
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==References== |
==References== |
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Revision as of 23:26, 9 May 2014
 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (September 2010) |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 05h 21m 12.6873s |
| Declination | +29° 34′ 11.583″ |
| Apparent magnitude (V) | 5.66 |
| Characteristics | |
| Spectral type | A1Vs |
| U−B color index | 0.13 |
| B−V color index | 0.06 |
| Astrometry | |
| Radial velocity (Rv) | -18.7 km/s |
| Proper motion (μ) | RA: -1.54 mas/yr Dec.: -0.19 mas/yr |
| Parallax (π) | 11.72 ± 0.87 mas |
| Distance | 280 ± 20 ly (85 ± 6 pc) |
| Absolute magnitude (MV) | 5.717 |
| Details | |
| Mass | 3.1 M☉ |
| Radius | 2.1 R☉ |
| Luminosity | 40 L☉ |
| Temperature | 7,500–10,000 K |
| Rotation | 53 Km/s |
| Orbit | |
| Companion | HD 34790 B |
| Period (P) | 0.005891 yr |
| Semi-major axis (a) | 0.0005″ |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
HD 34790 is a spectroscopic binary.
References
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